Hawking HAI15SC HiGain Directional Corner Antenna 15dBi 2...

Though I'm personally no expert and new to wireless, also, I have gotten the opinion of an IT professional, who networks a large work community, various ways. LinkSys and NetGear equipment are top of his list. I know LinkSys is a subsidiary of Cisco. How much more network expertise can you get than that?! Anyway, these two names come up a lot on the web of people who are most happy with their equipment, also. (It's hard to nail these things, sometimes, because there are always people who hate any brand.) Hope this helps, realizing knowing, with your 360, you may have need of some real juice, which I can’t offer any detailed knowledge of. But I was thinking, if Cisco can't do it right, who can?